Caledonia Gas And Storage

Original Volume No. 1

Effective Date: 12/05/2007, Docket: RP08- 57-000, Status: Effective

First Revised Sheet No. 14 First Revised Sheet No. 14 : Effective

Superseding: Superseding Original Sheet No. 14

ISS RATE SCHEDULE

INTERRUPTIBLE STORAGE SERVICE

1. AVAILABILITY

This ISS Rate Schedule is available to any Customer for the purchase of

interruptible natural gas storage service from Caledonia, provided

that:

(a) Caledonia has determined that it has sufficient operationally

available storage, injection and withdrawal capacity to perform service

requested by Customer;

(b) Caledonia has determined that service requested by Customer will not

interfere with efficient operation of its system or with service to firm

storage customers;

Agreement under this ISS Rate Schedule (ISS Service

Agreement);

(d) Customer accepts responsibility for arranging any transportation

service required for utilization of the storage service provided under this

ISS Rate Schedule; and

(e) Customer satisfies the creditworthiness criteria in accordance with

Sections 3 and 24 of the General Terms and Conditions.

(f) Service under this ISS Rate Schedule may not be available to the

extent that Caledonia would be required to construct, modify, expand or

acquire any facilities to enable Caledonia to perform the requested

services.

2. APPLICABILITY AND CHARACTER OF SERVICE

(a) Service provided under this ISS Rate Schedule, including all

injections into and withdrawals from storage shall have the priority specified

in Sections 4.1 through 4.4 of the General Terms and Conditions or otherwise

to the extent provided in this ISS Rate Schedule.

(b) Subject to the limitations and requirements set forth in this Rate

Schedule and in Customer’s ISS Service Agreement, Customer shall be permitted

to request Caledonia to:

(i) Inject, on an interruptible basis, quantities received by

Caledonia from or on behalf of Customer and designated by Customer for

injection to "ISS Storage," up to the Customer’s Maximum Interruptible Storage

Capacity (MISC) on a daily basis not to exceed the Maximum Daily Injection

Quantity (MDIQ), as limited by the ADIQ set forth in Exhibit A of Customer’s

ISS Service Agreement, less sufficient quantities for Fuel

Reimbursement.

(ii) Deliver to Customer, on an interruptible basis, thermally equivalent

quantities of Gas, up to the Maximum Daily Withdrawal Quantity (MDWQ), as

limited by the ADWQ set forth in Exhibit A of Customer’s ISS Service

Agreement, on a daily basis, provided that Caledonia shall not be obligated

under